18 March 2016 – PNW Migration Update

Well, it would appear waterfowl are on the move.

Looking at last night’s radar we can see low level migration but with 20+ dBZ patches coming from the Counties of Benton/Polk/Marion and Multnomah/Clark (WA).  Which are home to Finley/Basket Slough/Ankeney (FBA) NWR, and Sauvie Island WMA/Ridgefield NWR.  Note how the birds that take off from FBA split.  Some head to the coast and some head up the valley.  Curious.  There is also a slug of migrants heading up the western slopes of the Cascades.  Again, curious.

It’s a very interesting radar image today, but exactly what is going on is all speculation.  Tomorrow we’ll take a look at Paul’s national radar composite.

In the Region: Rufus Humming Birds are now being reported and a Loggerhead Shrike was reported on the east side of the Cascades.

South: Swainson’s Hawks have made it to the Central Valley and a Bullock’s Oriole has also been reported there.



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